Json-smart is a performance focused, JSON processor lib. It is currently in use in projects such as Apache Hadoop, Redhat Ceylon, Citrus and more. The latest stable build is Version 2.3.
Json-smart interfaces are almost the same that json-simple, So migration from json-simple to json-smart, is very easy. Migration Guide Available Json-smart is one of the fastest java base Json API. See bench for more details. Benchmarks json-smart overview Fast (it’s at least twice faster) than the original json-simple See Benchmarks Use java Generics. Parser permissibility is highly customisable from permissive to strict. The json generator can generate compressed json data.Interfaces are the same, so json-simple projects can be easily port to json-smart. It uses maven build. Is available on maven central.